Pumping apparatus



April 1, 1941. c, JAcuzzl PUMHNG APPARATUS;

FiledvJan. 26, 1938 INVENTOR. .By CANDIDO Jncuzz/ ATTORNEY Patented'Apr. 1, 1941 1 UNITED ASTAT PUMPING APPARATUS Candido Jacuzzi, Berkeley,

Calif., assigner to Jacuzzi Bros. Inc., a corporation of California Application January 26, 1938, Serial No. 186,974

5 Claims. .(Cl. 1039-5) utilized to conduct the well to the latter pump. In the present instance, the pump 6 centrifugal pump which is driven by an electric motor 8 and discharges valve 9 and supplies the operating liquid for the injector under pressure from a point in its ds' charge passage ahead of the valve 9, the general [arrangement and pumping system 'being well casing or other pipe extending Another object is to provide for the mounting and dismounting of the injector pump within the pipe which receives it while'said pipe is in iixedly installed position in a well.

A further object is to provide for the support of the injector pump in its place by means of a pipe secured thereto and disposed longitudinally in and along the pipe which receives it.

Yet another object is to provide a simple and Aeective means for releasably and laterally sealing'theinjector pump within the pipe which receives it, said sealing means being controlled by to supply operating uid a manipulation of the pipe which carries the i ump.

An added object is to provide an injector assembly which is particularly adapted for its installation in the described manner.

The invention possesses other objects and fea.- tures of advantage, some of which, with the foregoing, will be set forth or be apparent in the following description of a typical embodiment of the invention, and in the accompanying drawing, in which, Y

Figure 1 is an elevationof a complete pumping apparatus embodying vention and operatively installed with respect to the casing pipe of a bored well.

Figure 2 is an enlarged axial section taken through the injector assembly .of the apparatus in its installed position in the casing pipe.

lFigures 3 and 4 are enlarged transverse sections taken ure 1.

respectively at A3---3 and 4-4 in Fig-v the features of present in- .q

As is particularly brought-out in Figure l, the

features of present invention are shown as applied in an operatively disposed pumping system which is arranged for the lifting removal 'of liquid y from a well through the combined actionsof a mechanically operated pump 6 disposed abovey the well, and an injector assembly 1 which receives its operating liquid from the pump 8 and is arranged to entrain and deliver liquid from known in the art. l

The injector 1 is designed for its removable disposal in an upright pipe II `J'vh'ich in the present instance comprises the casin pipe of a bored well, said pipe having been xedly installed as the Well was bored, and the present injector may be installed any time after the pipe II has been placed. A pipe I2 carries the injector 1 at its lower end and extends through thepipe II from the top thereof and inspaced relation from its bore' side whereby the pipe I2 and the bore portion of the pipe II about the pipe I2 dene independent passages I3 and Il respectively, 'said passages extending between injector 1, and one of said passages being utilized to the injector nozzle whilethe other passage conducts the pumped liquid to the top Cof the well and the pump 6. The pipe II is laterally sealed, at least above the injector, whereby to preventa lateral flow of liquid to or from its bore; as shown, the pipe: II is laterally imperforate above the injector therein. Each of the Apipes I'I-and I2 is of circular cross-section and would usually comprise a pluralityoof sections connected bysuitable tubular coupling elements.

In its present embodiment, the injector 1 comprises a tubular chamber Aprovided in a cylindrical intermediate portion I1 o! the body and.. arranged for the discharge of liquid therefrom into an eductor tube I8 at its upper end, said tube discharging into the passage Il. An injector nozzle vI 9 is provided and disposed for the discharge of the jet of uid 'therefrom axially into the intake end of the tube 18, and the passage of said nozzle is connected with the passage I3- of the pipe I2 through a body passage 20 whereby the latter pipe is arranged for ating uid tothe injector.

I'lhe chamber I6 is arranged for connection at its bottom with an intake passage 2| which has a usual one-,way valve 22 of the gravity type operative therein, said valve being shown in raised position in Figure 2, as Whenpumping is being effected. A lower injector body Vportion 23 encloses the valve 22 and provides" the seat 2l for comprises a vertical-shaft through a back-pressure.

the pump 6 and-thel body I5 having a liquid intake its use to conduct the operwith the body portion I1 by means of a nipple member which is threadedly engaged in and between said body portions to secure them in unitary association; the sectional arrangement is primarily provided to permit and facilitate the assembly of the injector elements, the assembled injector comprising a unit.

It will now be noted that the eductorv tube I8 is disposed to extend in the axial line of the injector body, and that this is provided for in the present case by attening the body portion laterally o1 the tube to have a C-shaped cross-section. with the circle of its outer face having no greater radius than that of the body portion I1 and having its center in the body axis, the portion of the body passage 20 therein also having a C-shaped cross-section. The tube I8 is thus understood to extend in a cylindrically curved trough provided in and along the body portion 28 to provide part of the passage I4, and to discharge into said passage from its upper end. The body portion 21 above the portion 28 is expanded opposite the discharge end of the tube I8 to'have a circular cross-section for threadedly receiving the lower end of the pipe I2 in axial relation to the body.

It is to be particularly noted that the injector body in its entirety lies within a'cylindric space which is of less diameter than the bore of the pipe Il whereby the injector assembly may be moved freely through said pipe, except whenit is sealed in its operative position in the manner hereinafter brought out.

In the present structure, the top of the body portion I1 is defined by a wall 28 .which in part deiines the bottom of the trough which receives the eductor tube chamber I8, vextends transversely of the body axis, and is provided `with an opening which threadedly receives the inner end of the tube I8. The chamber 20 terminates in an interior body portion 29 which extends into the chamber I8 from the side thereof at which the C-shaped portion of the chamberl20 is provided, and has an upper wall 3| and a lower wall 32 connected by-a cylindrically curved side wall 33. The wall 3| is provided with a threaded perforation to threadedly receive the .base of the nozzle I8, and the wall .32 is perforated to threadedly receive taught in' the United States Patent No. 1,758,400

which issued to R. Jacuzzi on May 13,v 1930.

A tubular extension 35 at the lower end'of the body portion 23 is contracted and mounts a sealing or packing ring 438 of resiliently yielding threadedly mounts -a tubular element 38 which has `its vupper end 33 arranged Ato engage and axially compress the ring 38 against the shoulder 31 for eiecting a radialexpansion"`o`f the ring@ when the element 38 is turned up on the exten- When the ring 38 is suiiiciently exsion 35. panded in a radial direction, it is arranged to tightly engage the inside of the pipe II to laterally seal the injector body in the pipe as is necessary if the pipe bore above the body is to be utilized as a pressure discharge 4duct for the injector in the described manner.

I8, vdenes the top of the 2 l l L 2,236,687

the valve, and said body portion 23 is connectedl Means are provided Iorrendering the sealing rin'g operative after the injector has been disposed where desired in the pipe II, said means essentially comprising a turning up of the ele'- -5 ment 33 against the under side of the sealing ring 38. Preferably, and as shown, the element 38 mounts a dogging means 4I at its lower'end.'

said means comprising a pair of spring loops having their extremities nxed to the element 38 l0 and constantly bearingagainst the inner face of the pipe II to permit a longitudinal movement of the element 38 through the pipe while preventing a rotation of the element in either direction. It will 4be noted that the present spring dog 4I is operative to center the injector in the pipe II, and that the pipe I2 extends axially oi' the injector, whereby to facilitate the installation and removal of the injector.

By reason of the provision ot the dogging means 4I on the lower end oi the injector, an

appropriate rotation or the injector may turn it in the element 38 to effect a radial expansion of the ring 38 to seal the injector in the pipe Il. A reverse rotation of the pipe I 2 and the injector will, ofcourse, release the ring from its sealing engagement with the pipe I I to permit an adjust ment or withdrawal of the entire injector assembly. It will be understood that rings 38 and spring, dogs 4I of different normal external diam- .30.eters would be provided i'or use in installing a giveninjecto assembly in pipes having diil'erent bores.

A suitable coupling means 43 is provided at the top of the pipe II as shown, flanges 44 and 435 .48 are respectively mounted on .the upper pipe end and on the lower end of a iitting 48 for securing thetting to the pipe top. The tting 46 provides passages 41 and 48 for connecting the pipe passages I4 and I3 respectively with vthe intake and discharge of the pump 8, and is arranged for its direct xing to and beneath the latter pump in the present instance;

With a pipe I I already installed in a well, an injector assembly 1 ot appropriate size, and

carrying a dogging means and sealing ring for,

their intended coaction with the inside of the pipe, wouldbe lowered through the pipe'II, sec- A tions of the pipe I2 being added as required until the injector is at the desired depth inthe pipe II.

50 The upper end of thepipe I2 is then secured to the tting 48 on the pump 8 with its passage 48 in registration with the pipe passage I3,Lafter which the pump and pipe and injector are rotated together to enect a. compression oi' the ring 38 .55 to seal the injector in the pipe II in the described manner. The ntting 48 may now. be secured to the pipe II by boltingthe flanges 44 together to complete the installation. The connections of the injector body portions and oi', the pipe I2 with the injector and of the pipe sections with each other and of the pipe I2 with theiitting 48 are all preferably made so' tight. or lotherwise secured, as the assembly is eil'ected that a reverse rotation of said assembly will not loosen any of the jointures but wi1I,. rather, baekeoif the element 33 to permit a. conand 4s In this manner, the injector may fe'cting a pressure I now consider to be a preferred embodiment of' my invention, I desire to have it understood that the showing is primarily illustrative, and that such changes may be made, as desired, as fail within the scope ofthe following claims.

I claim:

l. In combination with an'installed well casing which is laterally sealed above its liquid-intake portion, an injector pump for operation with pumped liquid disposed in said casing and having its nozzle discharging a solid jet of liquid therepump portion into in its axial line above said liquid intake pore i pump in the casing whereby said last passage is arranged to provide the sole discharge duct for the pump and from the well, and means for ef. discharge into the pipe of liquid,yvliich has previously been discharged from the well.

2. In an injector pump for laterally sealed installation in a laterally closed well bore, a pump body, providing a passage for pump-operating liquid longitudinally therethrough and having cylindrical upper and lower portions mutually coaxial and connected by an intermediate body portion which is `laterally flattened to have a C- providing an intake passage a shaped cross-section and to provide an external l recess about the body axis thereof, a jet nozzle mounted inthe upper wall of the lower body portion to discharge liquid from said body passage into said recess in the axial line of the body, for inducing a flow of liquid into the recess from the well, means for supplying a pump-operating liquid under pressure to the body passage, and means providing a discharge conduit from the recess and within the well bore.

3. In an injector pump for installation in the sealed portion of a well bore which is laterally sealed above its liquid-intake portion. a pump body providing a passage for pump-operating liquid longitudinally therein and having cylindrical upper and lower portions which are mutually coaxial and are connectedby an intermediate' body portion which is laterally flattened to prop operating lliquid under pressure to the `from the recess and within coaxial and are connected body portions and the the pump intake for discharging liquid upwardly into the 'recess in the axial line of the pump body and from below the pump, a jet nozzle mounted in the lower body portion and connected with the first body passage to discharge liquid therefrom axially into the eductor passage for inducing a flow of liquid into the recess from the well, means for laterally vsealing the pump in the well bore at a point of the pump between the recess and the intake for the pump, means for supplying pump# body passage, and means providing a discharge conduit the well bore.

4. In an injector pump for installation in the sealed portion of a well bore which is laterally sealed above its liquid-intake portion, apump body of cylindrical outline providing a passage for pump-operating fluid therein and having cylindrical upper and by an intermediate body portion which is shaped to provide an external recess between the first body portions and withinthe confines of thebody cylinder, a jet nozzle mounted in the upper wall of the lower body portion to discharge fluid from said body passage into said recess axially of the body for inducing a. ow of liquid into the recess from the well, means for supplying a pump-operating fluid mutually aligned and are connected by an interf mediate body portion shaped to provide a recess external of the body and dened between the first and the sealed well bore portion, means-sealing the lower body portion in the well bore thereat, a I

jet nozzle mounted in the upper wall of the lower body portion to discharge fluid upwardly into said recess for inducing a now of liquid into the recess from the well, means supplying a pump-operating fluid under pressure to the body passage,`and

means providing a discharge conduit from the CANDIDO 'JACUZZL providing an eductor passage from lowerportions which are mutually in said sealed portion Y pump-operating fluid therein intermediate body .portion- 

